152 chemistry: concepts and applications chemlab and minilab worksheets, answer key 2 interpret your results from procedures 3 and 4 in this way. Post-lab questions for synthesis and decomposition of zinc iodide post-lab questions for synthesis and decomposition of zinc iodide author: jennifer smalley. Synthesis of zinc iodide adapted by r s nord of eastern michigan university from synthesis and decomposition of zinc iodide pre-laboratory preparation. Purpose: in your own words, write the purpose of this lab activity into your lab notebook materials: 1 granular zinc 2 iodine crystals 3 acidic water. Zinc iodide is a chemical compound of zinc and iodine , zni in the laboratory, this synthesis method remains unchanged today.
Calculate the mass ratio of zinc to iodine in zinc iodide ( mass of zinc consumed is 105g and mass of iodine consumed is 198g)mass of zni2 after reaction is 245g. Materials formation and decomposition of zinc iodide lab formation and decomposition of zinc iodide lab quiz (1 copy per student) zinc synthesis and. Preparation of laboratory reagent potassium iodide granulated zinc in the stored solution to avoid oxidation (025m. In my chem lab we synthesized zinc iodide to 1g granulated zinc, 2ml distilled water and 4 drops of 2 m acetic acid was added then 1g of iodide the mixture was.
This video is about zinc iodide lab overview this video is about zinc iodide lab overview synthesis of zinc iodide lab overview - duration: 4:24. Experiment 01 - preparation and properties of tin compounds chemical hazards 1the preparation of tin(iv) iodide. Determination of a chemical formula: the synthesis of zinc iodide there should be no open flames in the laboratory when working with. Determination of empirical formulas in this lab you will synthesize zinc iodide from zinc metal and solid iodine you will also determine the formula of an unknown.
Chemistry 1215 experiment #10 zinc iodide (see equation 1) zn(s) experiment #10 the reaction of zinc and iodine, pre-lab. In the laboratory 796 journal of chemical education • vol 80 no 7 july 2003 • jchemedchemwiscedu an experiment concerning the synthesis of zinc iodide. Lab - part 2 physical science lab lab # 24: how a limiting reactant determines the yield of zinc iodide synthesis of zinc iodide experiment 4 r s nord stephen. Empirical formula of zinc iodide reference: general chemistry laboratory experiments, suzanne w slayden, 1999, 3rd edition, pages 31-35 purpose.
The synthesis of zinc iodide purpose: to determine the empirical formula of zinc iodide by synthesizing the ionic com-pound directly from its elements. We had to prepare zinc iodide from its elements in a previous lab then for this one, we needed to prepare zinc iodide from a double replacement reaction. How to cite mcgarvey, g j 2001 zinc iodide e-eros encyclopedia of reagents for organic synthesis.
Two inquiry-based labs that complement a previously published activity in this journal, the synthesis and decomposition of zinc iodide: model reactions for. Many substances are compounds of different elements this experiment combines iodine and zinc to make zinc iodide. Synthesis of zinc iodide in this lab you will synthesize zinc iodide from zinc metal and chemistry 143 experiment #7 synthesis of zinc iodide dr caddell.
Chem 109 introduction to chemistry revision 11 laboratory exercise: synthesis of zinc iodide in this exercise we will synthesize the compound zinc iodide from the. Zinc iodide, what is the formula in this experiment, you will combine elemental zinc (zn) and iodine (i 2) to form “zinc iodide” you will determine the. View notes - lab - zinc iodide report from chem 211 at george mason lab report: empirical formula for zinc iodide chelsea pinkham chem 211 section 202 september 27. This paper details the results of an experiment to produce zinc iodide from the reaction of zinc with iodine, making use of the laboratory setup given to inve.